Method for identifying substance by simulating dual energy X-ray imaging by utilizing Monte Carlo method
A technology of X-ray and X-ray spectrum, which is applied in the fields of nuclear radiation exploration, geophysical measurement, measuring device, etc., can solve the problem of low material identification accuracy, and achieve the effect of improving the inspection accuracy and reducing the false alarm rate.
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[0014] The specific embodiment one, utilize Monte Carlo method to simulate the method for material identification of dual-energy X-ray imaging, it is realized by the following steps:
[0015] Step 1. Use the Monte Carlo method to simulate the process of bombarding the tungsten target with an electron beam with an energy of 9 MeV and an energy of 6 MeV to generate bremsstrahlung and obtain an X-ray spectrum;
[0016] Step 2, collimating the X-ray spectrum obtained in step 1, scanning the sample to be tested after collimation, and obtaining a scanned image;
[0017] Step 3: Analyzing the scanned image obtained in Step 2 to obtain the identification curve of the sample to be tested, and realize the identification of the substance according to the relationship between the identification curve and the substance atoms.
[0018] The electron beam with energy of 9 MeV and energy of 6 MeV in step 1 is 0.2 cm.
[0019] In step one, the diameter of the tungsten target is 1.5 cm and the ...
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